4-Methyl-3-nitro-1H-pyrazole
Also known as: 4-Methyl-3-nitropyrazole, 1H-Pyrazole, 4-methyl-3-nitro-, 4-methyl-3-nitro-2H-pyrazole, 4-Methyl-5-nitro-1H-pyrazole
4-Methyl-3-nitro-1H-pyrazole (CAS 38858-90-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H5N3O2 and a molecular weight of 127.101 g/mol. Key properties include a boiling point of 317.2±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 145.6±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 38858-90-1
- Jingsj CID
- J-1447745-3
- Molecular Formula
- C4H5N3O2
- Molecular Weight
- 127.101 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 317.2±22.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 145.6±22.3 °C |
| Exact Mass | 127.038177 |
| PSA | 74.50000 |
| LogP | 0.68 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.592 |
Customs & Trade Information
| HS Code | 2933199090 |
|---|---|
| Summary | 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 4-Methyl-3-nitro-1H-pyrazole?
The CAS number of 4-Methyl-3-nitro-1H-pyrazole is 38858-90-1.
What are the molecular formula and molecular weight of 4-Methyl-3-nitro-1H-pyrazole?
4-Methyl-3-nitro-1H-pyrazole has molecular formula C4H5N3O2 and molecular weight 127.101 g/mol.
What are the upstream and downstream products of 4-Methyl-3-nitro-1H-pyrazole?
For 4-Methyl-3-nitro-1H-pyrazole, Upstream Products: 4-Methylpyrazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Methyl-3-nitro-1H-pyrazole (CAS 38858-90-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1447745-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.